CVE-2022-49017

{"id": "CVE-2022-49017", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-10-21T20:15:12.910", "references": [{"url": "https://git.kernel.org/stable/c/1daec0815655e110c6f206c5e777a4af8168ff58", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3067bc61fcfe3081bf4807ce65560f499e895e77", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a1ba595e35aa3afbe417ff0af353afb9f65559c0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e128190adb2edfd5042105b5d1ed4553f295f5ef", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: re-fetch skb cb after tipc_msg_validate\n\nAs the call trace shows, the original skb was freed in tipc_msg_validate(),\nand dereferencing the old skb cb would cause an use-after-free crash.\n\n BUG: KASAN: use-after-free in tipc_crypto_rcv_complete+0x1835/0x2240 [tipc]\n Call Trace:\n <IRQ>\n tipc_crypto_rcv_complete+0x1835/0x2240 [tipc]\n tipc_crypto_rcv+0xd32/0x1ec0 [tipc]\n tipc_rcv+0x744/0x1150 [tipc]\n ...\n Allocated by task 47078:\n kmem_cache_alloc_node+0x158/0x4d0\n __alloc_skb+0x1c1/0x270\n tipc_buf_acquire+0x1e/0xe0 [tipc]\n tipc_msg_create+0x33/0x1c0 [tipc]\n tipc_link_build_proto_msg+0x38a/0x2100 [tipc]\n tipc_link_timeout+0x8b8/0xef0 [tipc]\n tipc_node_timeout+0x2a1/0x960 [tipc]\n call_timer_fn+0x2d/0x1c0\n ...\n Freed by task 47078:\n tipc_msg_validate+0x7b/0x440 [tipc]\n tipc_crypto_rcv_complete+0x4b5/0x2240 [tipc]\n tipc_crypto_rcv+0xd32/0x1ec0 [tipc]\n tipc_rcv+0x744/0x1150 [tipc]\n\nThis patch fixes it by re-fetching the skb cb from the new allocated skb\nafter calling tipc_msg_validate()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tipc: volver a obtener el skb cb despu\u00e9s de tipc_msg_validate Como muestra el seguimiento de la llamada, el skb original se liber\u00f3 en tipc_msg_validate(), y desreferenciar el antiguo skb cb causar\u00eda un bloqueo por use after free. ERROR: KASAN: use after free en tipc_crypto_rcv_complete+0x1835/0x2240 [tipc] Seguimiento de llamadas: tipc_crypto_rcv_complete+0x1835/0x2240 [tipc] tipc_crypto_rcv+0xd32/0x1ec0 [tipc] tipc_rcv+0x744/0x1150 [tipc] ... Asignado por la tarea 47078: kmem_cache_alloc_node+0x158/0x4d0 __alloc_skb+0x1c1/0x270 tipc_buf_acquire+0x1e/0xe0 [tipc] tipc_msg_create+0x33/0x1c0 [tipc] tipc_link_build_proto_msg+0x38a/0x2100 [tipc] tipc_link_timeout+0x8b8/0xef0 [tipc] tipc_node_timeout+0x2a1/0x960 [tipc] call_timer_fn+0x2d/0x1c0 ... Liberado por la tarea 47078: tipc_msg_validate+0x7b/0x440 [tipc] tipc_crypto_rcv_complete+0x4b5/0x2240 [tipc] tipc_crypto_rcv+0xd32/0x1ec0 [tipc] tipc_rcv+0x744/0x1150 [tipc] Este parche lo corrige volviendo a obtener el cb skb del nuevo skb asignado despu\u00e9s de llamar a tipc_msg_validate()."}], "lastModified": "2024-10-24T18:36:13.233", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D0FB1AF1-0A0B-4419-B25F-C61F17380E18", "versionEndExcluding": "5.10.158", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0DC20DB6-73C1-4465-B931-117BFB8EBB02", "versionEndExcluding": "5.15.82", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D6D56E90-F3EE-413D-B3E2-B518932F0C7D", "versionEndExcluding": "6.0.12", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3FFFB0B3-930D-408A-91E2-BAE0C2715D80"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8535320E-A0DB-4277-800E-D0CE5BBA59E8"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}